[PATCH v2 13/16] drm/amd/display: Fill in vrefresh and min_vblank_time for dce8/dce10

[Harry Wentland]

From: Jordan Lazare <Jordan.Lazare at amd.com>

PPLib is now calling into DC to get vrefresh and min_vblank_time, but
since full bandwidth calcs are missing for those generations, the pplib
structures were never being filled. This change fills the currently
required fields to prevent screen corruption.

Change-Id: I5438407f2e3b85f108daa3dd52afd11f702dff84
Signed-off-by: Jordan Lazare <Jordan.Lazare at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
Reviewed-by: Jordan Lazare <Jordan.Lazare at amd.com>
---
 .../drm/amd/display/dc/dce100/dce100_hw_sequencer.c | 21 +++++++++++++++++++++
 .../drm/amd/display/dc/dce100/dce100_hw_sequencer.h |  5 +++++
 .../drm/amd/display/dc/dce110/dce110_hw_sequencer.c |  8 ++++----
 .../drm/amd/display/dc/dce110/dce110_hw_sequencer.h |  8 ++++++++
 .../drm/amd/display/dc/dce80/dce80_hw_sequencer.c   |  2 ++
 5 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.c
index bd8e19f1038b..f11044e0245c 100644
--- a/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.c
@@ -104,6 +104,26 @@ static bool dce100_enable_display_power_gating(
 		return false;
 }
 
+void dce100_pplib_apply_display_requirements(
+	struct core_dc *dc,
+	struct validate_context *context)
+{
+	struct dm_pp_display_configuration *pp_display_cfg = &context->pp_display_cfg;
+
+	pp_display_cfg->avail_mclk_switch_time_us =
+						dce110_get_min_vblank_time_us(context);
+
+	dce110_fill_display_configs(context, pp_display_cfg);
+
+	if (memcmp(&dc->prev_display_config, pp_display_cfg, sizeof(
+			struct dm_pp_display_configuration)) !=  0)
+		dm_pp_apply_display_requirements(dc->ctx, pp_display_cfg);
+
+	dc->prev_display_config = *pp_display_cfg;
+}
+
+
+
 static void set_displaymarks(
 		const struct core_dc *dc, struct validate_context *context)
 {
@@ -116,6 +136,7 @@ static void set_bandwidth(
 		bool decrease_allowed)
 {
 	dc->hwss.set_displaymarks(dc, context);
+	dce100_pplib_apply_display_requirements(dc, context);
 }
 
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.h
index cf497ea605c8..f51d04a66a49 100644
--- a/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dce100/dce100_hw_sequencer.h
@@ -29,8 +29,13 @@
 #include "core_types.h"
 
 struct core_dc;
+struct validate_context;
 
 bool dce100_hw_sequencer_construct(struct core_dc *dc);
 
+void dce100_pplib_apply_display_requirements(
+	struct core_dc *dc,
+	struct validate_context *context);
+
 #endif /* __DC_HWSS_DCE100_H__ */
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 2a3a39e31717..839c34409c63 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2097,7 +2097,7 @@ static void init_hw(struct core_dc *dc)
 	}
 }
 
-static void fill_display_configs(
+void dce110_fill_display_configs(
 	const struct validate_context *context,
 	struct dm_pp_display_configuration *pp_display_cfg)
 {
@@ -2146,7 +2146,7 @@ static void fill_display_configs(
 	pp_display_cfg->display_count = num_cfgs;
 }
 
-static uint32_t get_min_vblank_time_us(const struct validate_context *context)
+uint32_t dce110_get_min_vblank_time_us(const struct validate_context *context)
 {
 	uint8_t j;
 	uint32_t min_vertical_blank_time = -1;
@@ -2224,13 +2224,13 @@ static void pplib_apply_display_requirements(
 			= context->bw_results.required_sclk_deep_sleep;
 
 	pp_display_cfg->avail_mclk_switch_time_us =
-						get_min_vblank_time_us(context);
+						dce110_get_min_vblank_time_us(context);
 	/* TODO: dce11.2*/
 	pp_display_cfg->avail_mclk_switch_time_in_disp_active_us = 0;
 
 	pp_display_cfg->disp_clk_khz = context->dispclk_khz;
 
-	fill_display_configs(context, pp_display_cfg);
+	dce110_fill_display_configs(context, pp_display_cfg);
 
 	/* TODO: is this still applicable?*/
 	if (pp_display_cfg->display_count == 1) {
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
index a6b4d0d2429f..52462c17b2e9 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
@@ -30,6 +30,8 @@
 
 #define GAMMA_HW_POINTS_NUM 256
 struct core_dc;
+struct validate_context;
+struct dm_pp_display_configuration;
 
 bool dce110_hw_sequencer_construct(struct core_dc *dc);
 
@@ -58,5 +60,11 @@ void dce110_power_down(struct core_dc *dc);
 
 void dce110_update_pending_status(struct pipe_ctx *pipe_ctx);
 
+void dce110_fill_display_configs(
+	const struct validate_context *context,
+	struct dm_pp_display_configuration *pp_display_cfg);
+
+uint32_t dce110_get_min_vblank_time_us(const struct validate_context *context);
+
 #endif /* __DC_HWSS_DCE110_H__ */
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_hw_sequencer.c
index 85a54d963f8d..9d4e7d8b836e 100644
--- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_hw_sequencer.c
@@ -31,6 +31,7 @@
 
 #include "dce/dce_hwseq.h"
 #include "dce110/dce110_hw_sequencer.h"
+#include "dce100/dce100_hw_sequencer.h"
 
 /* include DCE8 register header files */
 #include "dce/dce_8_0_d.h"
@@ -118,6 +119,7 @@ static void set_bandwidth(
 		bool decrease_allowed)
 {
 	dc->hwss.set_displaymarks(dc, context);
+	dce100_pplib_apply_display_requirements(dc, context);
 }
 
 
-- 
2.11.0